All categories

3 years ago

Joe is 20 years old. His sister is half his age less 7. How old is his sister?

Mathematics

1 answer:

MakcuM [25]3 years ago

3 0

The answer is 3. 20/2=10 10-7=3

You might be interested in

For the values a = 3.4 and b = 2.6, which are legs of a right triangle, find c, the hypotenuse, to the nearest tenth.

sammy [17]

C^2 = a^2 + b^2
c^2 = 3.4^2 + 2.6^2
c^2 = 11.56 + 6.76
c^2 = 18.32
c = 4.3

answer
c = 4.3

4 0

2 years ago

Read 2 more answers

Parallel lines m and n are cut by a transversal t. Which two angles are corresponding angles? A. 1 and 5 B. 1 and 6 C. 1 and 2 D

jeka94

Answer:

1 and 5

Step-by-step explanation:

So basically corresponding angles are the angles which lie on the same line of the transversal

And also one of them will be an interior angle and the other a exterior angle

6 0

2 years ago

Can someone please put 1 1/4 cups 0.4 L 950 mL and 0.7 gallons in greatest to least

Yuliya22 [10]

Answer:

0.7 gallons, 950 mL, 0.4 L, 1 1/4 cups

Step-by-step explanation:

First we need to convert the information given into one unit, in this case I will convert it into liters (L)

CUPS

1 cup is equal to 236.588 ml and is the same as .236 L using this information and knowing that 1 1/4 cup is the same as 1.25 cups we have that

$x=\frac{1.25\times .236}{1}$

x=.295 L

LITERS

0.4 L will stay the same

MILILITERS

1 liter is 1000 ml so 950 ml is the same as

$x=\frac{950 \times 1}{1000}$

x=.950 L

GALLONS

1 gallon is 3.78541 L so 0.7 gallons are

$x=\frac{0.7 \times 3.785}{1}$

x=2.649 L

arranging the data from greatest to least we have that 0.7 gallons, 950 mL, 0.4 L, 1 1/4 cups

5 0

2 years ago

Marco deposited $500 in a savings account earning 4% interest over 5 years.

ollegr [7]

C. 100 because 500 times 0.04(decimal form of 4%) is 20. 20 times 5(years) is 100

6 0

3 years ago

Read 2 more answers

Find two numbers, if Their sum is −7 and their difference is 14

Mademuasel [1]

Let
a------------> first number
b------------> second number

we know that
a+b=-7--------> a=-7-b----------> equation 1
a-b=14--------> equation 2

<span>I substitute 1 in 2
</span>
(-7-b)-b=14-------------> -7-b-b=14----------> -7-2b=14-------> 2b=-7-14
2b=-21---------> b=-10.5
a=-7-b-------> a=-7-(-10.5)-----> a=-7+10.5------> a=3.5

the answer is
the two numbers are
a=3.5
and
b=-10.5

6 0

3 years ago

Read 2 more answers